Wood-blight composition.



UNITED STATES PATENT onrron.

JOHN w. Lanna, or CATAWBA. IsLAmp, 'omo.

WOOD-BRIGHT COMPOSITION.

939,273. No Drawing.

To all whom it may concern:

Be it known that I, JOHN W. LAYER, a citizen. of the United States; residing at Catawba Island, in the county of Ottawa and State of Ohio, have invented a certain new and useful Improvement in Wood- Blight Compositions, of which the following is a specification.

My composition is prepared by mixing the following ingredients, in the proportion stated, viz:

Potassium hydroxid 5 oz. Sodium hydroxid 17 oz. Arsenious oxid 20' oz. Chlorid of iron, (ferric chlorid, preferred) 1 oz. Lime, unslaked 32 lbs. Sulfur, pulverized preferred 6 lbs. Cupric sulfate 1% lbs.

Water, substantially pure, 100 gallons.

To ten ounces of water taken from the one hundred gallons add the five ounces of potassium hydroxid and apply heat: to the aforesaid add five ounces .of sodium hydroxid dissolved by ten ounces of water taken from the remaining portion of the one hundred gallons and warmed, and thereafter agitate the same by ap lying heat to the extent ofcausinga slow boil: then add twenty ounces of arsenious oxid, substantially pure, and agitate all of the aforesaid preparation by boiling for ten minutes, and permit the same to cool slowly thereafter: a chemical reaction takes place from the aforesaid, wh'erefrom sodium arsenite and postassium arsenite is formed: tothe aforesaid add one ounce of chlorid of iron solution, preferably ferric chlorid, so that by chemical reaction ferric arsenite will have been formed, and agitate the preceding preparation by stirring well for a few moments and thereafter permit the same to stand for a short time and then add the following preparation. Add sufiicient warmed water taken from the remaining portion of the one hundred gallons to slake three and three quarter pounds of fresh unslaked stone lime, substantially pure, whereby will be obtained calcium hydroxid, and to this Specification of Letters Patent. Application filed amen 25, 1909. Serial in. 485,840.

Patented N ov. 9, 1909.

add six pounds of pulverized sulfur, agitating the same by thoroughly mixing, and from which will be obtained calcium disulfid to an approximated amount of one hundred and thirty nine ounces: to this latter preparation add twelve ounces of sodium hydroxid which previously has been dis solved by one quart of warmed water taken from the remaining portion of the one hun dred gallons, and from the said reaction we will have sodium di-sulfid of an approximated amount of twenty five and sixty-five one-hundredths ounces, and all of which agitate by boiling for about three quarters of an hour, and in the mean time stir the same to keep it in a very plastic state and extract therefrom the liquid which add to the preparation which herein before was permitted to stand for a time: on adding the extracted liquid a chemical reaction takes place wherefrom is produced calcium arsenite to the approximate amount of two and nine-onehundredths of an ounce, which is thoroughly mixed by agitation with the aforesaid ingredients: to this later pre aration now add one and one-half pounds of cupric sulfate dissolved by a gallon of water well heated and taken from the remaining portion of the one hundred gallons, whereupon a chemical reaction takes place and the composition will contain approximately, thirty one one-hundredths ounce of ferric arsenite, two and eight one-hundredths ounces of calcium arsenite, thirty five and sixtyfour one-hundredths ounces of cupric arsenite, a trace of sodium arsenite, twenty mven ounces of calcium sulfate,-eleven and fifteen one-hundredths ounces of calcium hydroxid, four and five-tenths ounces of sodium hydroxid, four and twenty six one-hundredths ounces of potassium hydroxid, ninety seven one-hundredths ounces of cupris hydroxid, twenty five and sixty five one hundredths ounces of sodium di-sulfid, and thirty one and sixteen one hundredths ounces of calcium di-sulfid: While the aforesaid chemical tion is dependent on lenty of moisture about the roots which should be bared for its a plication, whereupon healthy. plant life will regained.

I am not aware that an similar composition has ever heretofore used for any purposes whatever.

What I claim, and desire to secure by Letters Patent of the United States, is-

A wood blight composition, comprising ferric arsenite, calcium. arsenite, cupric ar- .cium hydroxid, sodium hydroxid', potassium hydroxid 'cupric' hydroxid, sodium di-s'ulfid calcium i-sulfid and water, in the descri 15 proportions.

In testimony whereof I aflix' my signature in presence of two witnesses. I

. JOHN W. LAFER. Witnesses: 1

CUNNINGHAM, LEE R. DRAKE. 

